How to Determine Ring Size

This is a revision of a previous article I did to determine your ring size. It is much more informative than before. Hope this is helpful.

I make wire wrapped rings with crystals, gemstones and metallic pearls. And because I do, I need to be able to size them correctly to list them in my jewelry store.

If you go to a jeweler, they have a brass set of rings you can try on to determine your size. This is probably the best way to size your fingers, but possibly not the most convenient.

I have 2 methods you can use at home. Keep the following in mind when sizing:

*It is best to have you fingers measured when they are warm, not cold. When your fingers are cold, they shrink in size. Then your ring will become tight in warmer weather.

*Your finger is also largest at the end of the day, another time it is good to measure your finger for a ring.

*When measuring, if your knuckle is larger than the base of your finger, pick a size between the two sizes. That will feel best.

1st Method

Using a metric ruler (using millimeters, mm), measure the INSIDE of a ring that fits the your intended finger. Using the chart below, choose the size that is closest to your metric measurement.

Distance Across Inside of Ring

Metric..........Ring Size
14..............3
14.4............3 1/2
14.8............4
15.2............4 1/2
15.7............5
16.1............5 1/2
16.5............6
16.9............6 1/2
17.3............7
17.7............7 1/2
18.1............8
18.5............8 1/2
18.9............9
19.3............9 1/2
19.7............10
20.1............10 1/2
20.5............11
20.9............11 1/2
21.3............12
21.7............12 1/2
22.2............13

2nd Method

Cut a strip of paper 1/4" wide, or use a piece of string and wrap it around the finger you want to size for a ring. Wrap it snugly, how you would like the ring to feel (not too tight). Using a pen, pencil or marker, mark the point on the paper or string where it overlaps, creating a complete circle around the finger.

Now measure that string or piece of paper that fit around your finger in millimeters (mm). Use the following chart, find the ring size closest to your metric measurement.

Distance Around Finger.......Ring Size

44.............................3
45.4...........................3 1/2
46.7...........................4
48.............................4 1/2
49.2...........................5
50.5...........................5 1/2
51.8...........................6
53.1...........................6 1/2
54.3...........................7
55.6...........................7 1/2
56.9...........................8
58.2...........................8 1/2
59.4...........................9
60.7...........................9 1/2
62.............................10
63.3...........................10 1/2
64.5...........................11
65.8...........................11 1/2
67.1...........................12
68.3...........................12 1/2
69.6...........................13